The only breakfast item McDonald’s won’t include on its all day menu is the McGriddle, according to the company.

Certain McDonald’s franchises will adjust the menu, meaning it’s possible that some chains will serve McGriddles.

Extending breakfast is one of the largest initiatives the company has made to boost sales.

McDonald’s has previously said it doesn’t serve 24-hour breakfast because its grills aren’t big enough to handle breakfast and lunch items.

“It comes down to the sheer size of kitchen grills,” the company said on its website. “They simply don’t have the room for all of our menu options at one time — especially considering we use our grill to prepare many items on our breakfast menu.”

McDonald’s began testing the extended breakfast menu earlier this year.